+86-755-23894509-816herry@cnzhenya.com

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Jiangsu Zhenya Special Screw Co.,Ltd

Tel: 86-755-23894509

Fax: 86-755-23894519

Atten: henry liu

Email: herry@cnzhenya.com

skype: forcelink.fl

Add: No.8, Yannin Highway, Dainan Town, Xinghua City, Jiangsu, China

Metric Stainless Steel Serrated Hex Flange Head bolts

Metric Stainless Steel Serrated Hex Flange Head bolts

This bolt is identifiable by the ridge or surrounding the bolt head, this built-in washer under the head of the Bolt acts to distribute the clamping load over a greater area. A flange bolt is designed

Product Details

This bolt is identifiable by the ridge or surrounding the bolt head, this built-in washer under the head of the Bolt acts to distribute the clamping load over a greater area. A flange bolt is designed to provide the same holding power as a washer. Zinc plating, retards the corrosion rate in a normal atmosphere.

Hex Flange Screw, Serrated, Case Hardened, Zinc Plated , A2,A4

The information below lists the required dimensional, chemical and physical characteristics of the products in this purchase order. If the order received does not meet these requirements, it may result in a supplier corrective action request, which could jeopardize your status as an approved vendor. Unless otherwise specified, all referenced consensus standards must be adhered to in their entirety.




W

H

H1


F


Nominal   Size

Width Across

Head

Wrench

Flange Diameter


Flats

Thickness

Height



















Max.


Min.

Max.

Min.

Max.

Min.


#4

0.112

0.188


0.181

0.079

0.243

0.225


#6

0.138

0.250


0.244

0.157

0.133

0.350

0.314


#8

0.164

0.250


0.244

0.186

0.157

0.374

0.338


#10

0.190

0.312


0.304

0.210

0.185

0.454

0.424


#12

0.216

0.312


0.305

0.24

0.52

0.398


1/4

0.250

0.375


0.367

0.28

0.17

0.56


5/16

0.313

0.500


0.489

0.32

0.21

0.68


3/8

0.375

0.562


0.551

0.39

0.25

0.81


7/16

0.438

0.625


0.612

0.46

0.30

0.93


1/2

0.500

0.750


0.736

0.51

0.34

1.07


5/8

0.625

0.9375


0.922

0.62

0.42

1.33


3/4

0.750

1.1250


1.100

0.73

0.51

1.59


Specification Requirements:

Dimensions: Per ASME B18.2.1 **Exceptions: #12 and smaller, see dimensions above. All lengths are fully threaded

Length Tolerance: Sizes 4-12: Refer to ASME B18.6.3

Sizes 1/4”-3/4”: Refer to ASME B18.2.1

Material: Low Carbon Steel

Mechanical Properties:Case-Hardened Carbon Steel:

Tensile:  120,000 PSI Minimum

Case Hardness:  HRC 40 min.; case depth .002 to .007” for sizes 4 to 10, over ¼” case depth .005 to .011

Finish:Fe/Zn 3AT per ASTM F1941

Hydrogen Embrittlement: Baking to relieve internal hydrogen embrittlement is mandatory and shall be performed after electroplating prior to the application of conversion finish where baking


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